Amido-thiono-phosphoric acid phenyl esters

ABSTRACT

(N-unsubstituted and N-mono- and N,N-di- -alkyl-substituted amido)-O-alkyl-O-((2-carboalkoxy and 2-carbocycloalkyloxy, i.e. 2-alkoxy carbonyl and 2-cycloalkyloxy carbonyl) phenyl)-thionophosphoric acid esters which possess arthropodicidal, especially acaricidal and insecticidal, properties and which may be produced by reacting the corresponding thiono-phosphoric acid diester monohalide with ammonia or a primary or secondary amine.

United States Patent inventors Gerhard Sdu'ldel' Wnppeflal-Cronenbeq; Ingeborg Hanlnann, Cologne; Wllbehn Ste-dd, Wuppertal-Vohwhkel, all of Germany Appi. No. 775,540

Filed Nov. 13, 1968 Patented Nov. 16, 1971 Assignee Fm Bayer Akflengeeelbchafl Leverkuen, Germany Priority Nov. 30, 1967 Ger-any AMIDO-THIONO-PHOSPHORIC ACID PHENYL ESTERS 14 Claims, No Drawings Primary Examiner-Charles B. Parker Assistanl Examiner-Richard L. Raymond Anomey-Burgess, Dinklage 8:. Sprung ABSTRACT: (N-unsubstituted and N-monoand N,N-dialkyl-substituted amido-0-alkyl-0-[(2-carboalkoxy and Z-carbocycloalkyloxy, i.e. 2-alkoxy carbonyl and Z-cycloaikyloxy carbonyl) phenyll-thiono-phosphoric acid esters which possess arthropodicidal, especially acaricidal and insecticidal, properties and which may be produced by reacting the corresponding thiono-phosphoric acid diester monohalide with ammonia or a primary or secondary amine.

AMIDO-THIONO-PHOSPHORIC ACID PHENYL ESIERS The present invention relates to and has for its objects the provision for particular new amido-thiono-phosphoric acid phenyl esters, i.e. (Pl-unsubstituted and N-monoand N,N-di- -alkyl-substituted amido)--alkyl-0-[(2-carboalkoxy and 2- carbocycloalkyloxy, i.e. 2-alkoxy carbonyl and 2-cycloalkyloxy carbonyl)phenyl]-thiono-phosphoric acid esters, which possess arthropodicidal, especially insecticidal and acaricidal, properties, active compositions in the form of mixtures of such compounds which solid and liquid dispersible carrier vehicles, and methods for producing such compounds and for using such compounds in a new way especially for combating pests, e.g. arthropods, with other and further objects becoming apparent from a study of the within specification and accompanying examples.

German Patent 814,152 describes N,N-dimethylamido-0- ethyl- (A) or bis-(N,N-dimethyl)-amido- (B) -phosphoryl-salicylic acid ethyl esters which are obtainable by reaction of alkali metal salts of salicylic acid ester with the appropriate disubstituted phosphoric acid monochlorides. According to the information given in German Patent 8l 1,514, the aforesaid compounds are suitable for the active and passive control of sucking and eating insects. They are therefore usable as pesticides.

Furthermore, 0,0-dialkyl-thiono-phosphoryl-salicylic acid esters as well as their insecticidal and toxic efl'ect are already known (R1... Metcalf, Organic Insecticides (lnterscience publishers, New York, 1955).

It has been found in accordance with the present invention that the particular new amido-thiono-phosphon'c acid phenyl esters of the formula (2-carbalkoxy-phenyl)-thiono-phosphoric acid diester monohalide of the formula:

Hal

C O O R (Ha) inwhichRandR'arethesameasdefinedabove,andHalisa halogen atom, preferably chloro or bromo, and the latter compound is then reacted with ammonia or a primary or secondary amine of the formula:

inwhichR,andR,arethesameasdefinedsbove.

I Hal C O O R C 0 OR (Ila) in which the symbols R, R, R,, R, and Hal are the same as defined above.

Advantageously, in accordance with the present invention, in the various formulae herein:

R represents straight and branched chain lower alkyl such as methyl to tert.-butyl inclusive, especiniiy methyl, ethyl, nand isopropyl, n-, isoand s-butyi, and the like, and more particularly alkyl having one to four or one to three, and preferably one to two, carbon atoms; R represents straight and branched chain alkyl having one to six carbon atoms such as methyl to tert. -butyl inclusive as defined above, amyl, n-hexyl, pinacolyl (i.e. [Cl-i,],C-[CH,]Cl-l and the like, and more particularly alkyl having two to six or two to five, and preferably, two to four, carbon atoms, or one to five, and preferably, one to four, carbon atoms; or cycloalkyl having five to six ring carbon atoms such as cyclopentyl and cyclohexyl, and preferably cyclohexyl; R, represents hydrogen; or lower alkyl such as methyl to tert.-butyl inclusive as defined above, and the like, and more particularly alkyl having one to four or one to three carbon atoms, preferably methyl and isopropyl; and R, represents hydrogen; or lower alkyl such as methyl to tert.-butyl inclusive as defined above, and the like, and more particularly alkyl having one to four or one to three carbon atoms, preferably methyl and isopropyl; R, and R, being the same or different when both are lower alkyl.

In particular, R is lower alkyl, especially C alkyl; R' is C alkyl, especially C alkyl, or cyclohexyl; R, is hydrogen or lower alkyl, especially C alkyl; and R, is hydrogen or lower alkyl, especially C alkyl.

Preferably, R is C alkyl, R is C m is hydrogen or 14 m: m n is y g r-s alkal.

The instant compounds particularly contemplate amido-, N-

C alkylarnidoand N-C alkyl-N-C alkyl-arnido--C .0-[(2-carbo-Q alkoxy)phenyl]-thiono-phosphoric acid esters, especially where R is isopropyl.

The O-alkyl-thiono-phosphoric acid ester dihalides and salicylic acid alkyl esters required as starting materials for the production process of the present invention are known from the literature and are readily available on an industrial scale. The same is true of the starting amines.

Both the first and the second step of the production process of the present invention are preferably carried out in the presence of a solvent (this tenn includes a mere diluent). As such, partltularly suitable are water; low-boiling aliphatic alcohols, e.g. methanol, ethanol, propanol, butanol; ketones, e.g. acetone, methylethyl ketone, methylisopropyl ketone or methylisobutyl ketone; nitriles, e.g. acetonitrile and propionitrile; (optionally chlorinated) aliphatic or aromatic hydrocarbons, e.g. methylene chloride, ethylene chloride, chloroform, carbon tetrachloride, mono-, diand trichloroethylene, benzene, toluene, xylene, chlorobenzene; and ethers, e.g. diethyl ether, di-n-butyl ether of dioxan; and the like.

The first reaction step is preferably carried out in the presence of an acid-binding agent, while in the second step an excess of ammonia or primary or secondary amine serves advantageously as acid acceptor. Otherwise, alkali metal hydroxides, carbonates and alcoholates, such as potassium or sodium hydroxide, carbonate, methylate or ethy'late, and also tertiary bases, such as triethylamine, diethylaniline or pyridine, and the like may be used for this purpose. Finally, it is also possible instead of working in the presence of an acid-binding agent, to start from the appropriate salt, preferably an alkali metal salt or ammonium salt of the salicylic acid ester concerned.

The carrying out of the production process according to the present invention is possible within a fairly wide temperature range. In general, the work is carried out at room temperature or slightly to moderately elevated temperature, and preferably at substantially between about 20-60 C.

It has proved expedient, in both the first and second steps of the process, to continue stirring the reaction mixture (in each case, after combining the starting components) for a longer period (between 3 and 24 hours-optionally with slight heating) in order to complete the reaction.

According to the equations (a) and (b) given above, equirnolar amounts of the starting materials are theoretically necessary. It has proved advantageous first to add the mixture of salicylic acid alkyl ester, acid acceptor and solvent (or the appropriate salt of the salicylic acid alkyl ester) to the O-alkylthiono-phosphoric acid ester dichloride and, in the second step of the reaction, to add ammonia or the primary or secondary amine concerned to the O-alkyl-thiono-phosphoric acid ester monohalide-if desired, dissolved in one of the aforesaid solvents; the reverse sequence may, however, also be followed.

Working up of the mixture may take place in each case in the usual manner by taking up the former in a water-immiscible solvent, preferably a hydrocarbon or ether, washing the solution obtained, evaporating the solvent after separation of the layers and drying of the organic phase, and, if possible, subjecting the residue to fractional distillation.

The amido-thiono-phosphoric acid phenyl esters of the present invention are obtained either in the form of solid crystalline substances which can readily be further purified by recrystallization from the usual solvents or they are colorless to slightly colored, water-insoluble oils, some of which can be distilled under greatly reduced pressure without decomposican, however, be free from the last volatile constituents by socalled slight distillation," that is, brief heating to slightly to moderately elevated temperature. in this way they can be purifled.

As already stated above, the amido-thiono-phosphoric acid phenyl esters of the present invention possess an outstanding rapidly commencing the long-lasting insecticidal and acaricidal activity with, in some cases, extremely low toxicity to warm-blooded animals, and concomitantly slight phytotoxicity. The instant compounds are therefore usable with success in plant protection and the protection of stored products, as well as in the hygiene and veterinary medical fields, for the control of noxious sucking and biting insects Diptera and mites.

To the sucking insects contemplated herein there belong, in the main, aphids (Aphidae) such as the green peach aphid (Myzuspericae), the bean aphid (Domlirfabae), the bird cherry aphid (Rhopalosiphum padi.), the pea aphid (Macrasiphum pisi) and he potato aphid (Macrosiphum salamfolii), the currant gall aphid (Crypromyzus korschelti), the mealy apple aphid (Sappaphir malt), the mealy plum aphid (Hyaloptenu arundinir) and the cherry blackfly (Myzus cerasi); in addition, scales and mealybugs (Coccina), for example the oleander scale (Aspidiolus hederae) and the soft scale (lzcanium hesperidum) as well as the grape mealybug (Pseudococcus maritimus); thrips (Thysanoptera), such as Hercinothrips femoralis, and bugs, for example the beet bug (Piesma quadrata), the cotton bug (Dysderrus intermedius), the bed bug (Cimex lectularius), the assassin bug (Rhodnius prolixus) and Chagas bug (Triatoma infestans) and, further, cicadas, such as Euscelis bilobatus and Nephorenix bipunctatus; and the like.

In the case of the biting insects contemplated herein, above all there should be mentioned butterfly caterpillars (Lepidoptera) such as the diamond-back moth (Plutella maculipennis), the gipsy moth (Lymanma dispar), the brown-tail moth (Euproctis chrysorrhoea) and tent caterpillar (Malacosoma neustria); further, the cabbage moth (Mamestra brassicae) and the cutworm (Agrotis segetum), the large white butterfly (Pien's brassicae), the small winter moth (Cheimotabia brumata), the green oak tortrix moth (Torrrix viridana), the fall armyworm (Laphygma frugiperda) and cotton worm (Prodenia lilura), and ermine moth (Hyponomeuta padella), the mediterranean flour moth (Ephesn'a Kiihniella) and greater wax moth (Galleria mellonella); and the like. Also to be classed with the biting insects contemplated herein are beetles (Coleoptera), for example the granary weevil (Sitophilus granarius=Calandra granaria), the Colorado beetle (Leprinorarsa decemlineara), the dock beetle (Gastrophysa viridula), the mustard beetle (Phaeodn cochleariae), the blowom beetle (Meligethes aeneus), the raspberry beetle (Bylurus tomentosus), the bean weevil (BruchwuFAcamhmceIides obtectus), the leather beetle (Dennestesfrischi), the khapra beetle (Trogoderma granarium), the flour beetle (Tribolium casraneum), the northern corn billbug (Calandra or Sitophilm sesrnals), the drugstore beetle (Stegobium paniceum), the yellow mealwonn (Tenebn'o molitor) and the sawtoothed grain beetle (Oryzaephilus surinamensir), but also species living in the soil, for example wireworms (Agriores spec.) and larvae of the cockchafer (Melolonrha melolonrha); cockroaches, such as the Gennan cockroach (Blatella germam'ca), American cockroach (Periplanera amen'cana), Madeira cockroach (Laucophaea or Rhypambia madeirae), Oriental cockroach (Blatta oriemalis), the giant cockroach (Blaberus gigameus) and the black giant cockroach (Blaberus fuscus) as well as flexivitra; further, Orthoptera, for example the house cricket (Acheta domestics); termites such as the eastern subterranean termite (Reticulitermes flavipes) and Hymenopetra such as ants, for example the garden ant (Lasius niger); and the like.

The Diptera contemplated herein comprise essentially the flies, such as the vinegar fly (Dmrophila melanogaster), the Mediterranean fruit fly (Ceratitis capirata), the housefly (Musca domestica), the little housefly (Famu'a canicularis),

tion. When such distillation is not possible, the compounds the black blowfly (Phomu'a aegina) and bluebottle fly (Calliphom erythmcephala) as well as the stable fly (Stomoxys calcitram); further, gnats, for example mosquitoes such as the yellow fever mosquito {Aedes aegypli), the northern house mosquito (Euler pipiens) and the malaria mosquito (Anopheles stephensi); and the like.

With mites (Acan') contemplated herein there are classed, in particular, the spider mites (Tezranychidae) such as the two-spotted spider mite Tetranychus eelarz'ur=l ezmuychus althaeac or Tezranychus unicae) and the European red mite (pilosuFPanonychus ulmi), blister mites, for example the currant blister mite (Eriophyes ribis) and tarsonemids, for example the broad mite (Hemilarsonemus lotus) and the cyclarnen mite (Tarsonemus pallidus); finally, ticks, such as the relapsing fever tick (Ornithodorus moubaza); and the like.

when used against hygiene pests and pests of stored products, particularly flies and gnats, the instant new active compounds are also distinguished by an outstanding residual activity on wood and clay, as well as a good stability to alkali on limed substrates.

in the veterinary medical field the new compounds of the present invention are usable with success against numerous noxious m'iimal parasites (ectoparasites and endoparasites), such as araciinids, insects and worms; and the like.

As ectoparasites of animals as contemplated herein, there are mentioned from the class of the Arachnida: lxodidae, as for example the cattle tick (Boophilus microplue) (strains normally sensitive to, and strains resistant to, phosphoric acid esters) and the sheep tick (Rhipicephalus) bursa; Gamasidae, as for example the red bird mite (Dermonyssus gallinae); Sarcoptidae, m for example the cattle digging-mite Sarcoptidae, as for example the cattle digging-mitc (Sm-copies bovis), the dog digging mite (Sarcopres canis), the sheep sucking mite (P- soropres ovis), the rabbit sucking mite (Psoroptes cuniculi) and the mouse scab mire (Myobia musculi); and the like.

As ectoparasites from the class of the insects as contemplated herein, there are mentioned: Mallophaga, as for example the dog hair-louse (Trichodectes canis), the cattle hair-louse (Donalineo bowls) and the hen leather-louse (Eomenacanthus stramiueus); Anoplura, as for example the short-nosed cattle louse (Hacmatopinus ewysternus); Diptera, as for example the sheep kcd (Melophagus ovinus) and Diptera larvae parasitic in warmblooded animals, as for example Lucilia sericate, Lucilia cuprina, c/n'ysomyia chloropyga and larvae of warble flies as for example the cattle warble ily (Hypociermo bowls); Aphaniptera, as for example the dog flea (Ctenocephalides canis); and the like.

As endopurasites in animals as contemplated herein, there are mentioned from the class of the nematodes: Srrongylidae, as for example the nodule worm of sheep (Oesrrphagostomum cvlumbiamun); Ancylostomatidae, as for example the dog hock-worm Uncz'naria stenocephaln) and the dog hookworm Ancylosromo cnmnum; Ascarididae, as for example the dog ascarids (Toxocaro canis and Toxascoris lamina); Trichostrongylidae, as or example the sheep abomasium-worm (Haemoncliur comorlus) and the worm of the small intestine of sheep i ll ichoszrongylus colubriformis); Trichuridae, as for example the hen hair worm (Capillaria obsigrzata); and the like.

The active compounds according to the instant invention can be utilized, if desired, in the form of the usual formulations or compositions with inert conventional pesticidal diluents or extenders, i.e. conventional pesticidal dispersible carrier vehicles such manner, for solutions, emulsions, suspensions, emulsiliable concentrates, spray powders, pastes, soluble powders, dusting agents, granules, etc. These are prepared in known manner, for instance by extending the active compounds with conventional pesticidal dispersible liquid diluent carriers and/or disperslble solid carriers o tionally with the has at carrier vehicle assistants. conventions! psstlcidul surface-active agents, including emulsifying agents and/or dispersing agents, whereby, for example, in the case where water is used as diluent, organic solvents may be added as auxiliary solvents. The following may be chiefly considered for use as conventional carrier vehicles for this purpose 'nert dispersible liquid diluent carriers, including inert or, ic solvents, such as aromatic hydrocarbons be: "2B, toluene, xylene, etc.) halogenated, especially chlori ..te, aromatic hydrocarbons (cg. chlorobenzenes, etc.) pa .s (cg. petroleum fractions), chlorinated aliphatic hydroca. cons (e3. methylene chloride, etc.), alcohols (eg. methanol, ethanol, propanol, butanol, etc), amines (cg. ethanol-amine, etc), ethers, ether-alcohols (e.g. glycol monornethyl other, etc), amides (e.g. dimethyl formamide, etc.), sulfonides (eg. dimethylsulfoxide, etc.), ketones (cg. acetone, etc.) and/or water; as well as inert dispersible finely divided solid carriers, such as ground natural minerals (on. kaolins, alumina, silica, chalk, i.e. calcium carbonate, talc, lcieselguhr, etc.) and ground synthetic minerals (cg. highly dispersed silicic acid, silicates, e.g. alkali silicates, etc.); whereas the following may be chiefly considered for use as conventional carrier vehicle assistants, cg. surface-active agents, for this purpose: emulsi fying agents, such as nonionic and/or anionic emulsiiying agents (eg. polyethylene oxide esters of Early acids, polyethylene oxide others of fatty alcohols, allryl sulionatcs, aryl sulfonates, etc., and especially allayl arylpolyglycol ether-s, magnesium stearate, sodium oleate, etc), and/or dispersing agents, such as lignin, sulfite waste liquors, methyl cellulose, etc.

Such active compounds may be employed alone or in the form of mixtures with one another and/or with such solid and/or liquid dispersible carrier vehicles and/or with other known compatible acdve agents, especially plant protection agents, such as other acaricides, insecticides, fungicides, herbicides, bactericidcs, etc., if desired, or in the oi particular dosage preparations for specific application made therefrom, such as solutions, emulsions, suspensions, powders, pastes, and granules which are thus ready for use.

As concerns commercially marketed preparations, these generally contemplate carrier composition mixtures in which the active compound is present in an amount substantially between about 0.1-94 percent weight, and preferably 0.5 percent by weight, of the mixture, whereas carrier composition mixtures suitable for direct application or held application generally contemplate those in which the active compound is present in an amount substantially between about 0.00001-20 percent, percent, preferably 0.0l-5 percent, by weight of the mixture. Thus, the present invention contemplates overall compositions which comprise mixtures oi a conventional dispersible carrier vehicle such as (l) a dispersiblc inert finely divided carrier solid, and/or (2.} a dispcrsble cnrrier liquid such as an inert organic solvent and/or water preferably including a surface-active eltective amount of a carrier vehicle assistant, cg. a surface-active agent, such as an emulsifying agent and/or a dispersing agent, and an amount of the active compound which is effective for the purpose in question and which is generally between about (10009!95 percent, and preferably 0.01-95 percent, by weight of the mixture.

The active compounds can also be used in accordance with the well-known ultralow-volumc process with good success, i.e. by applying such compound if normally a liquid, or by applying a liquid composition containing the same, via very effective atomizing equipment in finely divided form, cg. average particle diameter of from 50-40?) microns. or even less, i.e. mist form, for example by airplane crop-spraying techniques. Only up to at most about a few liters/hectare are needed, and often amounts only up to about l quart/acre, preferably 2-16 fluid ounces/acre, are sufficient. in this process it is possible to use highly concentrated liquid compositions with said liquid carrier vehicles containing from about 20 to about 95 percent by weight of active compound or even the W0 percent active substance nlouo, about 20-100 percent by weight oi the active compound.

in particular, the present invention contemplates methods of selectively killing, combating or controlling pests, e43.

arthopods, i.e. insects and acarids, and more particularly, methods of combating at least one of insects and acarids which comprises applying to at least one of correspondingly (a) such insects, (b) such acarids, and (c) the corresponding habitat, i.e. the locus to be protected, a correspondingly combative or toxic amount, i.e. an arthropidicidally, especially insecticidally or acaricidally, effective amount of the particular active compound of the invention alone or together with a carrier vehicle as noted above. The instant formulations or compositions are applied in the usual manner, for instance by spraying, atomizing, vaporizing, scattering, dusting, watering, sprinkling,pouring fumigatingand the like.

It will be realized, of course, that the concentration of the particular active compound utilized in admixture with the carrier vehicle will depend upon the intended application. Therefore, in special cases it is possible to go above or below the e i siqens ttai qn @289 The unexpected superiority and outstanding activity of the 20 particular new compounds of the present invention is illustrated without limitation by the following examples:

3 EXAMPLE 1 Phaedon larvae test Solvent: 3 parts by weight acetone Emulsifier: 1 part by weight alkylaryi polyglycol ether To produce a suitable preparation of the particular active compound, 1 part by weight of such active compound is mixed with the stated amount of solvent containing the stated amount of emulsifier, and the resulting concentrate is diluted with water to the desired final concentration.

Cabbage leaves (Brassica oleracea) are sprayed with this preparation of the given active compound until dripping wet and then infested with mustard beetle larvae (Phaedon cochleariae).

After the period of time stated in the following table, the degree of destruction of the pests is determined and expressed as a percentage: 100 means that all and 0 percent means that none of the beetle larvae are killed.

The particular active compounds tested, their concentrations, the evaluation time and the experimental results obtained can be seen from the following table 1:

TABLE 1 Concentra- Degree of tion of active destruction compound, in percent Active compound (constitution) in percent after 3 days B (CH:|)2N O 0.1 0

I] /P*O 2 u 0-0 CzHs (known comparative product) A rHr0\(|)| 0. (1)1 108 0. /P-O (CH3) IN OO C2H5 (known comparative product) O-O CzHs (known comparative product) P-O- NH:

QQQIL. s A

21 01130 S 0.1 100 II 0. 01 100 P-O 0. 001 95 NH:

31 C1H5O S 0.1 100 I! 0.01 100 PO 0. 001 100 NH:

4 CHaO S 0. 1 100 0. 01 100 P-O- 0. 001 100 o H;NI

C O-() C3H7-iS0 51 CzH50 S 0. 1 100 0. 01 100 PO 0. 001 100 C H3-N 0O C H -lso c 0 0 cam-15o TABLE 1 Contim ed Concentra- Degree of tion of destruction active in percent compound after 24 Active compound (constitution) in percent hours t s i 71 'CgHgO S 0. 1 100 0. O1 100 /P0 0. 001 100 iso-CaH;NH i

O-0 C H-i-iso 81 C2H5O S 0.1 100 H 0. 01 100 O-O (hHy-n 91 CQHO S 0.1 100 l 0. 01 100 P() CH N11:

Call;

EXAMPLE 2 25 Cabbage plants (Brassica oleracea) which have been heavily Myzus test (contact action) Solvent: 3 parts by weight acetone Emulsifier: 1 part by weight alkylaryl polyglycol ether To produce a suitable preparation of the particular active 30 compound, 1 part by weight of such active compound is mixed with the stated amount of solvent containing the stated amount of emulsifier and the resulting concentrate is diluted with water to the desired final concentration infested with peach aphids (Myzus persicae) are sprayed with the preparation of the given active compound until dripping wet.

After the specified period of time, the degree of destruction is determined as a percentage: 100 percentage means that all the aphids are killed whereas 0 percent means that none of the aphids are killed.

The particular active compounds tested, their concentrations, the evaluation time and the results obtained can be seen from the following tattle 2: A

TABLE 2 Concentra- Degree of tion of destruction active in percent compound after 24 Active compound (constitution) in percent hours B (cHmN 0 0.1 o

ll /PO CHQQN C 0-0 0 H,

(known comparative preparation) A C2Ha0\fi 0. 1 0

(CH3) 2N C 0-O C 11 (known comparative preparation) mmon1=0 0 O0 C 11 (known comparative preparation) 12 CzHs0\lSI 0. 1 98 NH2 h CO-TQCH'LL a 7 k A 2: CH30\fi 0Dbl 1% N H: A}

O-0 C3H1-lS0 3: CgH5O\fi 0.1 85 l). 01 i0 V t N H: I

TABLE 2 Continued Concentra- Degree of tion of destruction active in percent compound after 24 Active compound (constitution) in percent hours 72 CzH5O S O. 1 99 ll /P-O is0-C H NH 0 0 C zHrlSO 92 C2Hs0\fi 00b}. 100 30 NH CH: 2 ooocn EXAMPLE 3 20 the given active compound until dripping wet. These bean plants are heavily infested with spider mites (Telranychus Tctl'anychus test telarius) in all stages of development.

proximately 10-30 cm., are sprayed with thepreparation of After the specified period of time, the eflectiveness of the preparation of given active compound is determined by counting the dead mites. The degree of destruction thus obtained is expressed as a percentage: 100 percent means that all the spider mites are killed, whereas 0 percent means that none of the spider mites are killed.

The particular active compounds tested, their concentrations, the evaluation time and the results obtained can be seen from the following table 3:

TABLE 3 Concentra- Degree of tion of active destruction compound in percent Active compound (constitution) in percent alter 8 days B (CHmN O 0.1 0

\ll /P0 HahN (JO-001B;

(known comparative preparation) \ll /P-O- Ha):

(known comparative preparation) ISI 0. 1 0 C (C;H O)1P0 (1 rnown comparative preparation) 2: CHaO\fi 00b} 13% /P0 T P? 3 QLKI MS i a s w Concentra- Degree of tion of active destruction compound in percent Active compound (constitution) in percent after 8 days 1; c,m 0A1 100 P0 iS0-C H1-NH C 0-0 CiH1-iso 82 t C1H5O S 0.1 100 aH1-n 9; t i. C,H;O S 0. 1 100 ll 0. 01 70 /PO Om N H:

O-O C H A w Q EXAMPLE 4 specimens of the various species of ticks, these are transferred Ti k m to Petri dishes, the bottom of each of which is covered with a correspondingly large disc of filter paper.

Afier 10 days, the efl'ectivenes of the preparation of the given active compound is determined by acertaining the inhibition of the depositing of eggs compared with untreated con trolticks The effect is expressed as a percentage, 100 percent meaning that eggs ceased to be deposited and 0 percent signifying that the ticks deposited eggs in the normal amount.

' The particular active compounds investigated, their concentrations, the parasites tested and the findings obtained can compound. After immersion of, in each case, 10 female beseen fromthefollowingtable 4:

TABLE 4 Concentra- Inhibition tion of active of the Parasite, compound depositing Boophilus in solution of eggs Active compound (constitution) microplur in percent in percent 13 .4 (CHmN O Sensitive 1.0 \il 0. 3 50 0 O. 1 50 0. 03 50 (01mm 0. 01 0 C O 0 C2115 0. 003 0 (known comparative preparation) A C2H50\?) ....,do L0 50 0. 3 50 P-0-/ o. 1 0. 03 50 (CH1) 2N 0. 0i 0 C 0 0 C2Hs 0. 003 0 (known comparative preparation) C S i.i. do ..i 1.0 50 0. 3 50 (CzHaOhP-O 0.1 50 0. 03 50 0.01 0 O O CzH5 O. 003 0 t t EQF V P PP W P i iiili t w. t 34 C2HtO\SI d0 ......r i=-o 01 1 0. 03 50 NH2 0. 01 50 COOC1H1iso 0.003 50 74 t t s C1H5O S r t dO 1.0 100 ll 0. a 100 P-O 0. l 100 0. 03 100 isoC;H1NH 0.01 100 C O O C H iso 0. 003 100 0. 001 50 9 t C3H50 S d0.. .7 1.0 1 0.3 100 P-O O. 1 101) u. 03 50 Nil-1 00011-011; lziig 2i. CH O S do L0 100 ll 0. 3 50 PO 0. 1 50 0. 03 50 l C O 0 0 111150 EXAMPLE 5 Test with parasitic ily larvae About fly larvae (Chrysomyia chloropyga) are brought into a test tube which contains about 2 cc. of horse muscle. Onto this horseiiesh are brought 0.5 ml. of the above preparation of the given active compound. Aher 24 hours, the degree of destruction is determined as a percentage. 100 percent meansll at all, and 0 percent that no, larvae were killed.

The particular active compounds investigated, their concentrations and the findin obtained can be seen from the fol- 10 lowing table 5:

TABLE 5 Concentration of active compound Degree of in solution destruction Active compound (constitution) Parasite in percent in percent B (CHQQN O Chryaomyia 0.03 0 ll chloropwa. 0.01 0 PO 0. 003 0 0. 001 0 CH1) :N l

C O O C2H5 (known comparative preparation) A CH O O Chryaomuia O. 03 0 ll chloropwa. 0.01 0 PO 0. 003 0 0. 001 0 (CH3) 1N C 0 O C 1H5 (known comparative preparation) Chrusomyia 0. 03 0 ll chloropwa. 0. 01 0 C e D (CzH50)2P-O 0.003 0 0. 001 0 C O O 02H;

g gr g n g a t q P B L L m u 7 w 3s CIHsO S Chryao'myia 0.03 100 H chloropugu. 0.003 100 P-O 0. 0003 50 0. 0000s 0 NH;

C O 0 CzH' iSO 14 CzHsO S Chrysomyia 0.03 100 u chluropwa. 0.003 50 PO 0. 0003 0 NH: 4)

O 0 CgHs CH|0 S Chryaomuia 0. 03 100 \{L chloropwa. 0.003 100 -O 0. 0003 50 NH:

O O C;H1iso 75 CIH O S Chryaom ia 0. 03 100 chloropyqa. 0.003 100 O 0. 0003 50 0. 00003 0 isoCiH1NH The process of the invention '5 illustrated by the following examples:

a. l-molar mixture To 180 g. ethyl-thiono-phosphoric acid ester dichloride there are added at 40 to C., with stirring, a mixture of 136 g. salicylic acid isopropyl ester, 220 g. water and 24 g. sodium hydroxide; the reaction mixture is then stirred for 4 hours and it is then taken up in 400 ml. benzene. The benune solution is washed twice with water, dried over sodium sulfate and, finally, the product is fractionally distilled. 155 g. O-ethyl-O- [(2-carbo-iso-propoxy)phenyll-tiono-pholphoric acid diester monochloride of b.p. l20'.0.0l mm. Hg are obtained.

h. 0.2-mollr mixture 66 g. (0.2 mol) of the O-ethyl-O-[(2-carbo-iso-propoxy) phenyll-thiono-phosphoric acid diester monochloride prepared according to (a) are added, with stirring, to 90 ml. of [5 percent ammonia solution. The temperature of the solution rises gradually to 20 to C. after subsidence of the exothermic reaction, the mixture is stirred for a further 24 hours at room temperature. The reaction mixture is then taken up in 200 ml. benzene, the benzene solution is washed with water until it has a neutral reaction, then dried over sodium sulfate, and the solvent is removed under reduced pressure. 46 g. (76 percent of the theory) of the amido-thiono-phosphoric acid 0- ethyl-O-[(2-carboisopropoxy)phenyl]ester are obtained in the form of a colorless, water-insoluble oil.

Analysis: P N

calculated for CHHHNOPS (molecular weight 303 Found:

The median toxicity of the compound in the rat per 05 is l ,000 mgJkg.

EXAMPLE 7 CH;O

l7 18 corresponding O-ethyl compound [cf. example 60]. The Sub- EXAMFLE 10 stance is obtained in the form of a nondistillable oil. The yield is QO percent of the theory. Analysis: P 5 021150 5 coieuiored ror c ii cioms 5 H trrtoieouier weight aoas 10.0%; 10.4%; P 5) Found: 9.4%; 9.1%. HUN

b. Preparation takes place by a method analogous to that of 0 0 s example 6b. The arnido-thiono-phosphoric acid O-methyl-O- Z-carbo-iso ro x phen lester, after rec tallization gum alip'oin eth y l tate r ni xmre, melts at 44%? 1O a. 1 mol of sodium rnethylate lS added to 166 g. (1 mol M g icyltc acid ethyl ester in 300 ml. methanol and the solution is C-ieuhtod rorC..H..NO.PS concentrated by evaporation. The residue is added, at to 35 C., to 180 g. O-ethyl-thiono-phosphoric acid ester Fm: dichloride in 1,000 ml. methylethyl ketone; the mixture is then stirred overnight, benzene is added to it, it is extracted with CHlO S water, and the organic phase is separated, dried and evaporated. There are obtained in this way 220 g. (71 percent CH (9 of the theory) of O-ethyl-O-[(2-carbo-ethoxy)phenyl]-thiono- N a 5 phosphoric acid diester monochloride of hp. 110 C./0.0l

00-0011 20 mm Hg c a. In manner analogous with that described in example 6a, 5

. Cnlc utedr c,.n,.cio.rs y dfl wp y lu or rrioieouior weifllt 303.5 10.0%; In; l 1.55; phosphoric acid diester monochloride is obtained as nondistil Found: 10.1%; 10.8%; i no. lable oil with a yield of82 percent ofthe theory. P s b. 93 g. (0.3 mol) of the O-ethyl-O-[(2-carboethoxy)phen- Calcuhted rot c.,ii,.cro,i s yl]-thiono-phosphoric acid diester monochloride prepared ac- (rrtoieeuut v id -5 )1 9.2%; 9.5%; cording to 100 are dissolved in 300 ml. ethylene chloride, and F 9*- 9:22 ammonia is introduced into this solution at 20' to 50 C. until P- By mam 9 'f l' 'l Y)P lcessation of the exothermic reaction. The mixture is then -M h acid dimer 9 with m washed with 100 ml. water, the organic phase is dried and mordmS to p the 'p P p 'l l evaporated, and the residue is recrystallized from petroleum y [(2 y)p y 1 ester is obtained in ether. The yield is 55 g. (63 percent of the theory). The i y Percent 3 5 amido thiono phosphoric acid O-ethyl-O-[(2-carbo-ethox- Altllyli: P y)Phenyl] ester melts at 42 C. Calculated ror c ugioys (molecular weifllt 3l7.5): 9.8%; Andy. P s N Fund: cuieui-ted tor c.,ii,.No.Ps

EXAMPLE 9 7 (molecular weight an): ion; HA5; us; Found: 10.; 11.15; 4.5a.

GrHsO S ll /PO (70 LE 1 l ieocinr-Nri 3 0 O C1H1i50 d To a solution oTlfi gi niolYO-ethyl-O-[Q-carbo- CiH O S iaopropoxy)phenyl]-thiono-phoephoric acid diester (8a) monochlon'de (prepared according to example in 600 ml. H benzene there are added, at 20 to 40 C., g 00cm? isopropylarnine dissolved in 75 ml. benzene. Afler subsequent stirring of the reaction mixture for 1 hour, it is extracted with 50 water, the benzene phne is separated, dried, and evaporated, a. Preparation of the 0-ethyl-0-[(2-carbo-n-propoxy)phenand the residue is fractionally distilled. The N-isopropylyl]-thiono-phosphoric acid diester monochloride is effected in amido-thiono phosphoric acid O-ethyl-O-[(2-carboa manner analogous to that of example 60 for the correspondisopropoxy)phenyl] ester boils at C. under a pressure of ing isopropyl compound. The product is obtained in the fonn 0.01 mm. Hg. The yield is g. (82 percent ofthe theory). 55 ofa nondistillable oil. The yield is 55 percent of the theory. Ttu m"" T 's'-' i ceieuioud tot CMOIS redeem-anus 9.015; 9.35; us; s Calculated tor c.,ii,.cio.i s

ln analogous manner, the following compounds can be ob- 60 (molecular weight 322.5 9.61; 9.9a; d: Found: 9.3; 9.25.

Analysis, percent Yield, percent Molecu- Calculated Found oi the Empirical l Constitution theory formula weight P S N P S N 51 0111.0 5 74 C H NO Ps 317 4. 4 3.6

\i Q -0- CHa-NH 0 0 c Hriso 6 C;H;O s 76 C HrrNO PS 331 9.4 9.7 4.2 9.9 10.4 4.4

O (CHOIN C O O CrH iso 4t CHtO 4o C H NO Ps 303 4.6 3.9

b. The O-ethyl-O-[(2-carbon-propoxy)phenyl] ester is obtained in the manner described in example 61: with a yield of 62 percent of the theory.

Anllyfi: P 5 Calculated for C,,H,.NO.P

(moiecular weight 303): 10.2%; 105%; Found: 9.7%; 10.0%.

EXAMPLE l2 CgHsO S [I l a. A mixture of 33 g. sodium hydroxide, 200 ml. water and 165 g. salicylic acid cyclohexyl ester is added, at to C., rto 135 g. (0.75 mol) O-ethyl-thiono-phosphoric acid ester 'Ihe reaction mixture is subsequently stirred for a 'further 3 hours, then taken up in ether, the ethereal solution is dried, the solvent is evaporated and the O-ethyl-O-[(2-carboicyclohexoxy)phenyl]-thiono-phosphoric acid diester monochloride remaining behind as residue is slightly distilled.

:AnalyIi: P s calculated for c,.n cio,| s

, (rnolecular n 362.5): as; are; 'Found: an; use.

b. 145 g. (0.4 mol) OF O-ethyl-O-[Qcarbo-cyclohexoxy)phenyl]-thiono-phosphoric acid diester monochloride [prepared as described under 124:] are stirred together with 100 ml. ammonia solution overnight. The reaction mixture is then taken up in ether, the ethereal solution is dried, the solvent is evaporated, and the residue is slightly distilled.

The yield of amido-thiono-phosphoric acid O-ethyl-O-[(2- carbo-cyclohexoxy)phenyl] ester is 115 g. (84 percent of the theory).

Anllya'l: P s N Calculated for C H NOJS (molecular weiflt 343): 9.0%; 93$; 4.1%; Found: 8.9; 9.15; 3.81.

it will be realized that all of the foregoing compounds con templated by the present invention possess the desired selective pesticidal, especially arthropodicidal, i.e. insecticidal or acaricidal, properties for combating insects and acarids, and that such compounds have not only a very slight toxicity toward warmblooded creatures, but also a concomitantly low phytotoxicity. As may be used herein, the terms arthropod,

arthropodicidal and arthropodicide" contemplate specifically both insects and acarids. Thus, the insects and acan'ds may be considered herein collectively as arthropods to be combated in accordance with the invention, and accordingly the and/or acaricidal activity may be termed arthropodicidal activity, and the concomitant combative or effective amount used will be an arthropodically effective amount which in effect means an insecticidally or acaricidally eflective amount of the active compound for the desired pur- :vention.

What is claimed is: l. Amido-thiono-phosphoric acid phenyl ester of the formuin COOR in which R is lower alkyl, R is selected from the group consisting of alkyl having one to six carbon atoms and cycloalkyl having five to six carbon atoms, R, is selected from the group consisting of hydrogen and lower aikyl, and R, is selected from the group consisting of hydrogen and lower alkyl.

2. Ester according to claim 1 wherein R is C aikyl, R is selected from the group consisting of C alkyl and cyclohexyl, R, is selected from the group consisting of hydrogen and C alkyl.

3. Ester according to claim 1 wherein R is C, alkyl, R is C alkyl, R, is selected from the group consisting of hydrogen and C alkyl, and R, is selected from the group consisting of hydrogen and C aikyl.

4. Ester according to claim 1 wherein R is C alkyl, R is C alkyl, and R, and R, are both hydrogen.

5. Ester according to claim 1 wherein R is C, alkyl, R is isopropyl, and R, and R, are both hydrogen.

6. Compound according to claim 1 wherein said compound amido-0-methyl-0-( 2-carbo-isopropoxy-phenyl)-thionophosphoric acid ester of the formula 7. Compound according to claim 1 wherein such compound is amido-O-ethyl-0-( Z-carbo-isopropoxy-phenyl )-thionophosphoric acid ester of the formula 8. Compound according to claim 1 wherein said compound amido-0-ethyl-O-[(2-carbo-ethoxy)phenyl]-thionophosphoric acid ester of the formula 28 CaHs-O S 9. Compound amording to claim 1 wherein said compound is amido-O-methyl-O-[Qcarbo-isopropoxflphenyll-thionophosphoric acid ester of the formula CHg-O S 10. Compound according to claim 1 wherein said compound is amido0-ethyi-0-[(2-carbo-isopropoxy)phenyl]- thiono-phosphoric acid ester of the formula 11. Compound according to claim 1 wherein said compound is N-isopropyl-arnidoO-ethyl-0-{(2-carbo-isopropoxy)phenyl]-thiono-phosphoric acid ester of the formula 12. Compound according to claim 1 wherein said compound is N-isopropyl-amido--eihyl-04(Z-carbo-n-propoxy)phenyl]-thiono-phoephoric aoijl es terof ghe formula 13. Compound according to claim 1 wherein said compound is N-isopropyl-amido-O-ethyl-O-KZ-carbo-s-butoxy)phenyl]-thiono-phosphoric acid ester of the formula 4050 UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3621082 Dated November 16, 197].

Inventor(s) Gerhard Schrader et a].

It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Col. 3 line 5 n I! Q I r C alkyl; 1 should be C alkyl; R

line 6 should be C 1-1 alkyl; and R2 1-3 alkyl; 2

Col. 3, line 10 C01. 5 line '58 "9"' should be 061. 6, line 40 "94" should be 95 Col. 6 line 59 "ultralow" should he ultr-low Col. 1 5 line 71 "tiono" should be thiono Col. 15 line 78 "after" should be After UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3521082 Dated November 16, 1971 Inventor) Gerhard Schrader-et a1 PAGE 2 It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Claim 2 line 4 After "alkyl" add ant] R is selected from the group cons ist'tng of hydrogen and C alkyl Signed and sealed this 6th day of June 1972.

(SEAL) Attest:

EDWARD M.FLETCHER, JR. ROBERT GOTI'SCHALK I Commissioner of Patents Attesting Officer 

2. Ester according to claim 1 wherein R is C1-4 alkyl, R'' is selected from the group consisting of C2-6 alkyl and cyclohexyl, R1 is selected from the group consisting of hydrogen and C1-4 alkyl, and R2 is selected from the group consisting of hydrogen and C1-4 alkyl.
 3. Ester according to claim 1 wherein R is C1-2 alkyl, R'' is C2-4 alkyl, R1 is selected from the group consisting of hydrogen and C1-3 alkyl, and R2 is selected from the group consisting of hydrogen and C1-3 alkyl.
 4. Ester according to claim 1 wherein R is C1-2 alkyl, R'' is C2-4 alkyl, and R1 and R2 are both hydrogen.
 5. Ester according to claim 1 wherein R is C1-2 alkyl, R'' is isopropyl, and R1 and R2 are both hydrogen.
 6. Compound according to claim 1 wherein said compound is amido-0-methyl-0-(2-carbo-isopropoxy-phenyl)-thiono-phosphoric acid ester of the formula
 7. Compound according to claim 1 wherein such compound is amido-0-ethyl-0-(2-carbo-isopropoxy-phenyl)-thiono-phosphoric acid ester of the formula
 8. Compound according to claim 1 wherein said compound is amido-0-ethyl-0-((2-carbo-ethoxy)phenyl)-thiono-phosphoric acid ester of the formula
 9. Compound according to claim 1 wherein said compound is amido-0-methyl-0-((2-carbo-isopropoxy)phenyl)-thiono-phosphoric acid ester of the formula
 10. Compound according to claim 1 wherein said compound is amido-0-ethyl-0-((2-carbo-isopropoxy)phenyl)-thiono-phosphoric acid ester of the formula
 11. Compound according to claim 1 wherein said compound is N-isopropyl-amido-0-ethyl-0-((2-carbo-isopropoxy)phenyl)-thiono-phosphoric acid ester of the formula
 12. Compound according to claim 1 wherein said compound is N-isopropyl-amido-0-ethyl-0-((2-carbo-n-propoxy)phenyl)-thiono-phosphoric acid ester of the formula
 13. Compound according to claim 1 wherein said compound is N-isopropyl-amido-0-ethyl-0-((2-carbo-s-butoxy)phenyl)-thiono-phosphoric acid ester of the formula
 14. Compound according to claim 1 wherein said compound is N-isopropyl-amido-0-ethyl-0-((2-carbo-cyclohexyloxy)phenyl)-thiono -phosphoric acid ester of the formula 